Run: 2026-10-06-01M48VSKKHFBZXCJV73FW8WNMK

Run Details

Duration:
5.3s
Cost:
$0.000325
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
97.64% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The old lighthouse keeper found the body at dawn today. Inspector Mara Voss arrived quickly and surveyed the rocky shoreline carefully. Blood pooled beneath the victim's head on the wet stones. Three witnesses claimed they heard nothing during the dark night. The victim was a reclusive historian researching local maritime disasters. A torn photograph lay clutched in his frozen, rigid hand. Mara noticed fresh tire tracks leading away from the cliff. The medical examiner estimated death occurred around midnight last night. Someone had moved the body after the initial fatal injury. The lighthouse beam had failed mysteriously during the crucial hours. Mara photographed everything before the tide could wash evidence away.
created_at"2026-10-06T15:02:28.726Z" 10/6/2026, 3:02:28 PM
model"mistralai/mistral-large-4-0-20261006"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency1205
moderation_latency(null)
generation_time5331
tokens_prompt46
tokens_completion182
native_tokens_prompt50
native_tokens_completion139
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
service_tier"default"
usage0.00032451
router(null)
user_agent"langchainjs-openai/1.0.0 ((node/v24.21.0; linux; x64))"
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request_id"req-1791298948-UC0opAvmVnl35iFTSo1L"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1791298948-2MD8lzqqTwDVgNEZRWBX"
upstream_id"b4f5eca56a7747f7ad45de2272d09de5"
provider_responses
0
endpoint_id"19b3b5d7-23f6-4b63-8109-64a6cc37d996"
id"b4f5eca56a7747f7ad45de2272d09de5"
is_byokfalse
latency1205
model_permaslug"mistralai/mistral-large-4-0-20261006"
provider_name"Mistral"
status200
total_cost0.00032451
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"
response_cache_source_id(null)
data_region"global"
workspace_id"97e315e5-d303-487d-83c1-83180e8a13d4"

Evaluation details

Result Evaluator Details Meta Data
97.64% Matches word count n/a
neededCleanfalse
sentences11
wordCounts
010
111
210
310
410
510
610
710
810
910
1010